Tomtom One Just purchased new, in box, Tomtom One.I have loaded Tomtom Home on to my computer, gone through steps. My unit did not have a SD card,* I purchased a 1GB SD.Everything works until on screen "No Maps Found" It will not proceed. I cannot locate any instructions on this subject. It came with a black credit card with several codes? * the directions say that not all units come with card Thank You...Rusted

If you have an SD card installed then
Remove the SD card from the tomtom

The card may need to be formatted properly first or re-formatted.
Formatting is better done in a card reader.

There are differing views but this method has always worked for me.
Insert the card in the reader,.

Using my computer or windows explorer right click on it and select format

select FAT32 as the files system

Now connect the tomtom to the pc but don't let tomtom home run.
Exit TomTom Home if need be.

You now need to select your tom tom which will also show as a drive and may even show its own special icon.

In windows explorer select tools then folder options.
Click view and tick the box for "show hidden files and folders"
It may warn you but you can ignore it.

Then just copy ALL the files from the tom tom to your sd card.

DO NOT USE CUT AND PASTE !

Once all the files are on your new card switch off the tom tom and insert the sd card and re-boot the TomTom

It should now work.

If not try the hard re-set in which you would use a paperclip to reset the tomtom. there should be a tiny hole on the underside of the unti.
push the paperclip in there (not too hard) while the unit is switched on
This would cause a reset to factory defaults (you may have to set home location etc)

You may also have to switch off and re-boot again for it to take effect.

If you have an older tt xl it will only take up to a 2gb sd card. Larger than that you will get errors.
Hope this helps

This problem is due to the memory card not containing the TomTom application or map. To update the application onto the memory card

• Connect the device to your computer.
• Open the TomTom Home application.
• Click on 'Update My Device'.

This should then install the application onto the SD card. Alternativly, you could perform all the steps above without the SD card in the device, this will install the application onto the internal memory. Note: you may also need to install your maps, voices, etc after you updat.

Hi,
First you need to have the relivent map on your SD card. Typicly this will be the Tomtom Map " Western Europe ". When you purchase maps from TomTom you also get an activation code and instructions telling you how to install the map onto your device and how to authorise it using the code that comes with it.
Before doing anything ... BACK-UP your existing data ( the whole SD card ) onto your computer . This will ensure that if any update is unsuccesful you can at least return things to the way they were before you tried to update.
There are several ways to obtain maps

• buy a new TOMTOM SD card for your tomtom that containes the required maps. Make sure it comes with the authorisation card.
• buy a CD from TomTom or a TomTom authorised dealer . This CD will contain the required map so you can download the required map to your own SD card. Make sure it comes with the authorisation code AND instructions.
• buy the required map from TomTom online . You can download it to your PC , then copy it onto your SD card later. It will come with some instructions and authorisation code ...... You can also use "TomTom Home" software and this does most of the job of downloading maps ( that you buy from tomtom ) and puts them onto your sd card for you in a semi-automatic way . If you go down this route then its best to be sure you have the latest version of TomTom home software by going to the TomTom website first.
  

With ANY of the above methods------- BACK UP your existing SD card first . In fact ... make a BACK UP NOW , then if anything goes wrong at any time , you can at least revert back to your backup.

Good Luck

If you have TomTom that have the slot for SD card, then it should accepted the SD card. The instruction for how to use the SD card is simple, but it is hidden in the TomTom Home, that's why it's difficult to find it. Below are the instruction how to use the SD card.

1. Format the SD card (FAT32) and do not stick the SD in the slot yet
2. Run Backup (connect TomTom device to computer)
3. Disconnect TomTom from computer and turn off
4. Slide the SD into the slot and connect TomTom back to computer (choose "yes")
5. In the TomTom Home menu, Choosen Backup & Restore >>> and choosen Restore

TomTom Home will add all applications to the SD card. So the internal memory still have the applications and the SD card also had the same applications. Everytime you slide the card in, TomTom will automatic detect and use it as its primary storage, if it not detect, you can go to the device menu and pick the device to connect to.
Whenver you take the SD card out, then TomTom will use its internal memory.

Hope this helpful

The DATA on your SD card has become corrupt or the SD card itself has become damaged / faulty. ..... Hopefully , some time back , you backed up your SD card to your computer ? . All you need do is format the card and then reload the files from your PC . If the tomtom still doesnt load up then you would need to purchase a NEW BLANK SD card and reload your backup onto it. If that doesnt solve your problem and if unfortunatly you didn't back up the original card then you will need to purchase a NEW TOMTOM SD card with activation code . Bad news and a learning process , always back up your tomtom card !

I experienced the exactly same problem/symptoms with the backup restore function today. After installing the new firmware application on my TomTom Go 510, I did a new backup of my TomTom using the Home Application,  I then attempted to "restore" that backup to two spare SD cards.  The dialog box indicated "restoring," but nothing was being restored. My work-around, which worked great, was to locate the Backup Storage folder on my hard drive, and Drag & Drop its contents onto the spare SD cards (after erasing them).
I'm running the TomTom Home application (v 1.5.106) on an Intel iMac, OSX 10.4.10.

You cannot use a sd card from another tomtom. The sd card is coded for each individual device. About the only thing you can do is to purchase a 1 gb card (no larger because it won't be supported). Insert the blank card into your unit and connect it to your pc. Go to my computer and see which drive the tt is. format the card and then open tomtom home. This will load your operating system back onto your card. I don't know if you can download a free map or not. Check the tomtom forums for more information concerning maps.
Hope this helps